Hitachi Tv Blinking Blue Light 3 Times Hi, I Have A Hitachi P50H401 Plasma Tv. And The Blue Power Light Blinks 3 Times, Pauses, Blinks 3 Times, Etc.?

Hi, i have a hitachi P50H401 plasma tv. and the blue power light blinks 3 times, pauses, blinks 3 times, etc.? - hitachi tv blinking blue light 3 times

There is no picture, but when I use the TV using the reset button and go for a day or two, then the picture is a little b4 the power light flashes again and the image will be cut. I have also tried to separate. Suggestions?
Thank you!